Victoria Finlay author of Color: A Natural History of the Palette, says, of all the colors “yellow gives some of the most mixed messages of all.” Garden designers around the world agree, praising yellow as being “cheerful,” “joyous,” “luminous,” and for its “ability to harmonize.” Yet the same designers also warn of yellow being “a show-stealer,” “aggressive,” “garish,” “dominating,” even “perilous.”